Fixed or Permanent Retainers
Permanent retainers are bonded (or cemented) to the teeth. These retainers include a small metal wire, custom-designed to fit behind the teeth. They’re generally bonded to the back surface of the bottom teeth, but can also be used behind the top teeth depending on your condition.
Typically, fixed retainers will remain in place for a lifetime to ensure that your teeth don’t shift out of alignment.